Meg runs a 10km race in 45 minutes (0.75 hours). What was her speed in kilometers per hour?

a. 22 km/hr

b. 7.5 km/hr

c. 4.5 km/hr

d. 13 km/hr

A 2000 kg car experiences a constant braking force

A net force of 200 N acts on a 100-kg boulder, and a force of the same magnitude acts on a 130-g pebble during the same amount of time. Which object has the greatest value for each of these quantities?

If you can throw a stone straight up to height h, what's the maximum horizontal distance you could throw it over level ground?

Io maintains a constant orbit around Jupiter because A Io is held trapped within Jupiter's atmosphere due to friction caused by air resistance. B Io has been caught in the magnetic field created by Jupiter's rotation about its own axis.

Teresa saw a large star outside of her window at ten o'clock last night. If Teresa looks out of her window at ten o'clock tonight, will she be able to see her star again? A. No, her star will be on the other side of the Earth. B.

A number of food chains linked together

Inside a stereo speaker, you will find two permanent magnets: one on the cone and one near the cone. True of false?

When a hurricane nears land what causes the most damage

Calculate if an electric hair dryer uses 2,400 j of energy in 2 s, what is its power?

Which of the following choices best represents a potential stressor?